Clots cutting machine



T (No Model.) 2 Sheets-Sheet 1.

A. THYLL.

CLOTH CUTTING MAGHINE. No. 527,224, Patented Oct. 9, 1894.

.(No Model.) 2 Sheets-Sheet 2.

' A. THYLL.

CLOTH CUTTING MACHINE.

No. 527,224. Patented Oct. 9, 1894.

r i 1 Hioamu I UNITED STATES PATENT OFFICE.

ARTHUR THYLL, OF NEW YORK, N. Y., ASSIGNOR TO THE ELECTRIC CUTTER COMPANY, OF SAME PLACE.

CLOTH-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 527,224, dated October 9, 1894.

Application filed November 7, 1891. Renewed March 17 1894' Serial No. 504,100. (No model.)

New York, have invented certain new and useful Improvements in Electric Cloth-Cutting Machines, of which the following is a specification.

My invention relates to machines for cut-j and have each a serrated knife blade 71. h,

ting cloth and like material.

In the apparatus hereinafter described embodying my invention, two serrated knife blades are alternately moved up and down by means of mechanism hereinafter fully described. V

My invention is particularly pointed out in the'claims. v

In the accompanying drawings, Figure 1 represents a side view of my improved cloth cutting machine. Fig. 2, is a vertical section on line w m, and Fig. 3, a horizontal section on line y y, Fig. 1. Fig. 4, is ahorizontal section on line a ,2 Fig. 2, and Fig. 5, is a detail side view showing the mechanism for moving the knife blades up and down.

Similar letters of reference indicate corresponding parts.

The casing of the machine is formed by the two pole-pieces A and A, and the two fieldcoils B and B; the latter shown in Fig. 3. Between the two pole pieces the armature O is arranged, which produces in connection with the pole-pieces, the magnetic circuit of the motor. Brackets D and D are screwed respectively, to the top and the bottom of the pole-pieces and serve as bearings for the shaft E of the motor to which shaft the electric commutator E is fastened. The bracket D carries the brush-holder, which is secured to the same in any suitable manner. The commutator and the bracket thereof, are inclosedby a dome-shaped cap F, which is provided with a wheel-shaped handle F. The lower bracket has vertical guide-holes, as shown in Fig. 5, in which sliding pins (1, are movably fitted. These sliding pins carry the angularly bent sliding pieces G and G, which'are provided with inwardly extending pins g g, reaching a screw shaped groove in the rim of a wheel H, that is keyed to the motor-shaft E,

as clearly shown in Figs. 2 and 5.

By the rotary motion of the shaft E and the screw-wheel H, the sliding pieces G and G are moved up and down as the guide pins 9 and g of the said sliding pieces follow the up and down-ward motion of the guide-groove of the screw-wheel. The angle portions of the sliding pieces G and G meet each other screwed or otherwise attached thereto. The indentations of the knife blades are so made that one edge of the same is vertical and the other angular t0 the length of the blades.

' Only the angular edges are sharpened outside of the blades, so that the inner sides of the blades are perfectly straight and the whole inner surfaces of the same slide on each other.

The knife blades which are secured to the angular sliding pieces G G, are alternately drawn up and down by the like movement of the said sliding pieces imparted to the latter by the screw wheel H. The screwwheel, as well as the angular sliding pieces are inclosed by a conical cap J, screwed o. riveted to the pole pieces, covering also the bracket D. To the lower end of the cap J, a standard K is attached that is fastened to the base-plate L, by means of screws or rivets. The standard K has a vertical groove in which the knife blades are so fitted that the indentations of the same project out of the same. Three or more balls M, are so inserted into the base plate, that they form rollers for the same and allow any motion of the machine.

A handle N, is attached to the backside of the machine, which serves to push the machine toward the pile of cloth to be out. The electric current to put the machine into momotor through the conducting wires running through a longitudinal bore of the handle N to the switch 0 and from there through conducting wires within the tube P, to the terminals of the motor.

The cutting of the cloth with my improved cutteris performed in the following manner: The base-plate of the machine is pushed below tion, is conducted from the generator to the 9 the pile of cloth and by means of' the switch '0 the electric current is conducted to the motor and the shaft E with the screw shaped-guide Wheel H put into rotary motion. The groove in the rim of the said guide wheel, engaging the guide pins of the angular guide pinsGr' G, causes thelatter and simultaneously there with the serrated knife blade within the groove of the standard K to move'alternatel'yg,

up and down, so that the knife blades by their reciprocating motion act like the blade of scissors and cut into the cloth. By means of;

the handle, .the machine is moved along in the cloth according to the pattern to be cut. If it is desired to cut sharp corners, the ma-' claim as new and desire to secure by Letters 1 Patent- 7 t 1. In a cloth'cutting machine, anelectric motor mounted on a standard havinga base- York and State of New York, this 4th day of plate,'the rotating shaftof which motor is provided with a screw-shaped guide-wheel having a groove in'itsrimyin combination with angular guide-pieces'loosely fitted in abearing and having guide-pins engaged-by the said guide-wheel to move alternately up and down, and serrated knife-blades attached to the angular guide-pieces, substantially as set forth.

2. In a cloth cutting machine, the combination of an electric motor, with acasing inclosing the same, arotary shaft of the motor with bearings therefor, ascrew-wheel mounted on the said shaft, angular guide-pieces having knife-bladesat-tached thereto, guide-pins attached tovthe angular guide-pieces and being engaged by the said screw-wheel, and a grooved standard fastened to the base-plate,

in which standard the knife-blades are alternately moved up and down by the rotary motion of the motor-shaft, substantially as set forth. 1 J 3,; L

8. -In a cloth cutting machine, the-combination ot the rotating shaft E having the guide-wheel H keyed thereto, with the bracket D, the angular guide-pieces G G having pins dd loosely fitted in the bracket D, guidepins g g engaged by the said screw-wheel and vertically movable knife-blades h h, the cap J, and the grooved standard K inclosing the knife-blades and being attached to the said cap and the base-plate of the machine, substantially as set forth. 1

Signed at-New York, in the county of New November, A. D. 1891.

' ARTHUR THYLL.

, Witnesses:

ADOLPH SELIGMAN, CHARLES KARP. 

